Toy fortress



FIG. 1 is a front perspective view of a toy fortress showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a toy fortress, substantially as shown. 